1871745728746 has 8 divisors (see below), whose sum is σ = 2807916322464. Its totient is φ = 935773621260.

The previous prime is 1871745728719. The next prime is 1871745728753. The reversal of 1871745728746 is 6478275471781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1871745728746² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49597980 + ... + 49635703.

It is an arithmetic number, because the mean of its divisors is an integer number (350989540308).

Almost surely, 2^{1871745728746} is an apocalyptic number.

1871745728746 is a deficient number, since it is larger than the sum of its proper divisors (936170593718).

1871745728746 is an equidigital number, since it uses as much as digits as its factorization.

1871745728746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99243116.

The product of its digits is 147517440, while the sum is 67.

The spelling of 1871745728746 in words is "one trillion, eight hundred seventy-one billion, seven hundred forty-five million, seven hundred twenty-eight thousand, seven hundred forty-six".